hey guys how do i start ? i want to contribute... i am an experiences programmer but new to GO what i did so far : i installed GoLand cloned kratos running CMD go run main.go serve result this error FATA[2022-07-10T161101+03:00] Unable to instantiate configuration. audience=application error=map[message:I[#] S[#] validation failed I[#] S[#/required] missing properties: "dsn" is there something like .env file i need to create ? thanks